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50 MW BESS operating in Williamson, TX — Electric Reliability Council of Texas, Inc.
50 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2023
Operating Since
Coordinates
30.4148, -97.3570
County
Williamson, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Key Capture Energy | — | — |
| Owner(s) | Key Capture Energy | — | — |
| Status | Operating | — | — |
TX19 River Valley Storage 1 is a 50 MW battery energy storage system located in Williamson County, Texas. The plant began operating in 2023 and is owned and operated by Key Capture Energy. It consists of a single generator utilizing lithium-ion batteries (LIB) and has a total storage capacity of 111 MWh, providing a duration of approximately 2.22 hours at full output. The plant's primary fuel type is listed as "MWH," indicating that it draws power from the grid to charge its batteries.
The facility operates within the Electric Reliability Council of Texas (ERCOT) balancing authority, which falls under the Texas Reliability Entity (TRE) NERC region. In terms of size, TX19 River Valley Storage 1 is ranked as the 233rd largest power plant in Texas out of 313, and the 603rd largest in the United States out of 1205.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
−846 MWh
Net Charging
-7.2K MWh
Annual Net Energy
-1.6%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
2023
$1,361/kW
Est. Construction Cost
Total estimated cost: $68.0M
Market Position
ISO/RTO Market
ERCOT
LMP Node
RVRVLYS_ALL
Pricing Hub
HB_SOUTH
Alt. Hub / Zone
LZ_SOUTH
Location Type
Resource Node
Node Source
Curated node match
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